Sure Grip Detachable rings use a four-screw system and have steel caps and an aluminum saddle for added strength. Also features the quick detach system, allowing you to loosen the thumb screws and go to iron sights in seconds.
Specifications:

Type	Ring Set
Tube Diameter	1"
Height	Extra High
Size	1"
Finish	Black Matte
Style	Weaver
Material	Steel
Style Description
One or Two Piece	2
Adaptor Type
Mount Type	Warne/Weaver
Lock Type	4 Screws